Surgical instrument



FIG. 1 is a perspective view of a surgical instrument;

FIG. 2 is a side view thereof;

FIG. 3 is another side view thereof;

FIG. 4 is a front end view thereof;

FIG. 5 is a back end view thereof;

FIG. 6 top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in FIGS. 1-7 illustrate portions of the surgical instrument that form no part of the claimed design. 

CLAIM The ornamental design for a surgical instrument, as shown and described. 